Update ghcr.io/external-secrets/kubernetes-external-secrets Docker tag to v8.5.4

This MR contains the following updates:

Package	Type	Update	Change
ghcr.io/external-secrets/kubernetes-external-secrets	ironbank-docker	patch	8.5.2 -> 8.5.4
ghcr.io/external-secrets/kubernetes-external-secrets		patch	8.5.2 -> 8.5.4
ghcr.io/external-secrets/kubernetes-external-secrets	stage	patch	8.5.2 -> 8.5.4

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Release Notes

external-secrets/kubernetes-external-secrets

v8.5.4

Compare Source

v8.5.3

Compare Source

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